/*
 * Copyright 2016 The Netty Project
 *
 * The Netty Project licenses this file to you under the Apache License,
 * version 2.0 (the "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at:
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations
 * under the License.
 */
package io.netty.channel;

public interface ChannelInboundInvoker {

    //传播一个Channel注册事件
    ChannelInboundInvoker fireChannelRegistered();

    //传播一个Channel卸载事件
    ChannelInboundInvoker fireChannelUnregistered();

    //传播Channel激活事件
    ChannelInboundInvoker fireChannelActive();

    //传播Channel从激活取消的事件
    ChannelInboundInvoker fireChannelInactive();

    //传播异常事件
    ChannelInboundInvoker fireExceptionCaught(Throwable cause);

    //传播用户定义事件
    ChannelInboundInvoker fireUserEventTriggered(Object event);

    //传播一个Channel读事件
    ChannelInboundInvoker fireChannelRead(Object msg);

    //传播一个channel读完成事件
    ChannelInboundInvoker fireChannelReadComplete();

    //当Channel可写性发生改变，也会传播一个事件
    ChannelInboundInvoker fireChannelWritabilityChanged();
}
